Fixes from comments of @gfyoung

* Fix Lint Error

Author: Jean-Mathieu Deschenes

Diff for: pandas/core/indexes/timedeltas.py

@@ -15,7 +15,7 @@
     _ensure_int64)
 from pandas.core.dtypes.missing import isnull
 from pandas.core.dtypes.generic import ABCSeries
-from pandas.core.common import _maybe_box, _values_from_object, is_bool_indexer
+from pandas.core.common import _maybe_box, _values_from_object
 
 from pandas.core.indexes.base import Index
 from pandas.core.indexes.numeric import Int64Index

Diff for: pandas/tests/indexes/timedeltas/test_timedelta.py

@@ -66,6 +66,7 @@ def test_get_loc(self):
         for method, loc in [('pad', 1), ('backfill', 2), ('nearest', 1)]:
             assert idx.get_loc('1 day 1 hour', method) == loc
 
+        # GH 16909
         assert idx.get_loc(idx[1].to_timedelta64()) == 1
 
         # GH 16896